IEEE & Priyanka Vanjani CST 554: Short Presentation ASU Id #

Agenda IEEE and IEEE Standards IEEE and IEEE Standards Benefits of Benefits of Problems associated with Problems associated with vs vs Problems associated with Problems associated with Conclusion Conclusion

IEEE Institute of Electrical and Electronics Engineers Institute of Electrical and Electronics Engineers International, Non-profit organization International, Non-profit organization Leading standards-making organizations in industries like IT, healthcare, telecommunications, IS etc. Leading standards-making organizations in industries like IT, healthcare, telecommunications, IS etc.

IEEE Standards LAN/MAN bridging, remote MAC bridging Logical Link control standards for connectivity Ethernet standards for CSMA/CD Standards for token passing bus access Standards for token rings & LAN/MAN comm Standards for information exchange Broadband LAN cabling Fiber Optic connection For services like voice and data

IEEE Standards (contd..) For LAN/MAN security implementations WiFi-Wireless Networking Standards for demand priority access methods For cable television broadband communications Bluetooth Wireless Sensor/Control Networks: Zigbee Wireless Networking: WiMAX

Aims at deploying broadband Wireless Metropolitan Area Networks Aims at deploying broadband Wireless Metropolitan Area Networks Approved in Dec 2001 Approved in Dec 2001 Entry of broadband wireless access to link homes and businesses worldwide Entry of broadband wireless access to link homes and businesses worldwide Wireless MAN provides network access to buildings by using exterior antennas Wireless MAN provides network access to buildings by using exterior antennas

(contd..) Network access through cables is no longer required Network access through cables is no longer required : delivers broadband wireless transmission in the frequency range: GHz : delivers broadband wireless transmission in the frequency range: GHz a: 2-11 GHz a: 2-11 GHz Lower frequency range helps reach more people and cost less Lower frequency range helps reach more people and cost less

(contd..) : Line of sight only, 10-66GHz, Point-to-Multipoint applications : Line of sight only, 10-66GHz, Point-to-Multipoint applications a: Non Line of sight, 2-11GHz, Point-to-Multipoint applications. Base stations directly connect to the customer a: Non Line of sight, 2-11GHz, Point-to-Multipoint applications. Base stations directly connect to the customer c: Line of sight communication, c: Line of sight communication, 10-66GHz. Can be used in backhaul networks to connect a BS with high- speed links over long distances

(contd..)

How it works?

How it works? (contd..) provides communication path between the subscriber site and the core network provides communication path between the subscriber site and the core network It has a three-layered architecture It has a three-layered architecture

How it works? (contd..) Physical Layer: lowest layer, deals with error correction, synchronization, modulation and frequency. DAMA-TDMA technique is used for transmission from subscribers  base station Physical Layer: lowest layer, deals with error correction, synchronization, modulation and frequency. DAMA-TDMA technique is used for transmission from subscribers  base station MAC Layer: layer above Physical layer, associated with in what manner and when a station will initiate transmission MAC Layer: layer above Physical layer, associated with in what manner and when a station will initiate transmission

How it works? (contd..) Convergence Layer: for providing functions specific to the service such as ATM, internet Convergence Layer: for providing functions specific to the service such as ATM, internet

Benefits Services can be deployed faster even where wires cannot be reached Services can be deployed faster even where wires cannot be reached Reliable & Scalable Reliable & Scalable Single station is capable of serving hundreds of users Single station is capable of serving hundreds of users Wireless systems can span large geographical areas and are not expensive as cable links are not required Wireless systems can span large geographical areas and are not expensive as cable links are not required

Benefits (contd..) Efficient even when there are multiple connections per terminal Efficient even when there are multiple connections per terminal Provides QoS (Quality of Service) mechanisms Provides QoS (Quality of Service) mechanisms

: Amendments e-2005: Mobile e-2005: Mobile f-2005: Management Information Base f-2005: Management Information Base g-2007: Management Plane Procedures and Services g-2007: Management Plane Procedures and Services k-2007: Bridging of k-2007: Bridging of

Problems Difficult to determine each and every physical location for accurate placement of the equipment Difficult to determine each and every physical location for accurate placement of the equipment As a result, Deployment costs might increase As a result, Deployment costs might increase Operational costs are high too Operational costs are high too Needs strong electrical support-higher costs and power consumption Needs strong electrical support-higher costs and power consumption

Problems (contd..) Weather conditions such as rain can interfere with reception Weather conditions such as rain can interfere with reception Limitation of bandwidth: In high density areas, bandwidth may not be sufficient to meet the needs of all the users-high costs Limitation of bandwidth: In high density areas, bandwidth may not be sufficient to meet the needs of all the users-high costs Costs associated with setting up wireless network since the frequency used is licensed by the government Costs associated with setting up wireless network since the frequency used is licensed by the government

& Bluetooth Group Bluetooth Group Wireless Personal Area Networks (PAN) Wireless Personal Area Networks (PAN) derives a Wireless PAN standard based on bluetooth specifications derives a Wireless PAN standard based on bluetooth specifications emphasizes on low cost communication of nearby devices. Simple battery operated devices as sensors emphasizes on low cost communication of nearby devices. Simple battery operated devices as sensors Wireless MAN Wireless MAN Addresses point to multipoint communications Addresses point to multipoint communications Less costs as compared to DSL or cable modem access Less costs as compared to DSL or cable modem access 10-66GHz for c and 10-66GHz for c and 2-11GHz for a 2-11GHz for a

& WiMAX WiMAX License is required License is required Performs well when there are large number of users Performs well when there are large number of users Range: can go upto 50km Range: can go upto 50km Wi-Fi Wi-Fi No license required by govt. No license required by govt. Has performance limitations with large number of users Has performance limitations with large number of users Range: optimized for 100m Range: optimized for 100m

& QoS: Guaranteed mechanisms to provide QoS QoS: Guaranteed mechanisms to provide QoS a: 2-11GHz a: 2-11GHz c: 10-66GHz c: 10-66GHz Security: WEP, WPA, WPA2 Security: WEP, WPA, WPA2 QoS: No guarantee for delays, throughput QoS: No guarantee for delays, throughput Operates in the 5GHz and 2.4GHz bands Operates in the 5GHz and 2.4GHz bands Security: 128-bit 3 DES, 1024-bit RSA Security: 128-bit 3 DES, 1024-bit RSA

Problems with IEEE does not take into account changes in the predetermined frequency channel. In case of interferences, switching to another channel is not possible IEEE does not take into account changes in the predetermined frequency channel. In case of interferences, switching to another channel is not possible Not well-suited to applications with larger distance between nodes Not well-suited to applications with larger distance between nodes Can accommodate 7 or more nodes and has a short range of 10 meters Can accommodate 7 or more nodes and has a short range of 10 meters

Problems with Cannot operate well in high interference environments Cannot operate well in high interference environments

Conclusion Both and have their own advantages and disadvantages. While has high installation costs, is not expensive and doesn’t need licensing is used for devices like bluetooth, home security and is Wireless MAN’s. To conclude, they both have different transmission range, rate and work in different situations Both and have their own advantages and disadvantages. While has high installation costs, is not expensive and doesn’t need licensing is used for devices like bluetooth, home security and is Wireless MAN’s. To conclude, they both have different transmission range, rate and work in different situations

References _05.pdf 02_05.pdf Events%2FIEEE pdf 3Events%2FIEEE pdf LA-WINMEC NW.pdf LA-WINMEC NW.pdf

References (contd..) disadvantages.html disadvantages.html 1/0903tech.html 1/0903tech.html elessnetworksolutions.pdf elessnetworksolutions.pdf /0903tech.html 1/0903tech.html

References (contd..) // // lab%20acad%20nov%202005/5.Akingbehin.pdf lab%20acad%20nov%202005/5.Akingbehin.pdf 06/ftp/j_6man/sld022.htm 06/ftp/j_6man/sld022.htm

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